Top Senior Software Engineer Jobs in Milwaukee, WI

Build and maintain full-stack Finance and Business Systems with Ruby on Rails. Own architecture, coding, automated tests, DB tuning, deployments, and production support. Partner with Finance, Operations, and Engineering to create auditable, correct, and actionable unit-economics instrumentation. Participate in on-call rotation, hiring, and documentation.

Lead technical initiatives for a stream-aligned engineering team: design and implement scalable, resilient microservice-based systems, build and maintain JSON APIs, apply DDD and best practices, mentor mid-level engineers, collaborate with product and stakeholders, and evaluate new technologies to support business goals.

Lead delivery of high-complexity digital banking implementations: design and build Java Spring Boot microservices, REST APIs, cloud-native containerized deployments, data and DB migrations, event streaming, monitoring and performance optimization. Act as a customer-facing technical lead conducting code reviews, test strategies, and cross-functional coordination to resolve operational issues.

Lead remote engineering teams to design, architect, and deliver scalable, high-availability education technology platforms focused on content systems, workflows, and GenAI. Drive product and technical strategy, collaborate with product/design, implement cloud-native architectures, adopt agile practices, measure performance through data and testing, and continuously improve user engagement and platform reliability.

Design, develop, modernize, test, and support enterprise healthcare applications on the IBM i platform. Own complex enhancements and production issue resolution, improve legacy RPG code and Db2 for i performance, participate in architecture and release processes, mentor junior developers, and collaborate with cross-functional teams.

Lead architecture and development of high-performance, scalable backend systems for Yahoo Mail using Java and C++. Set technical strategy, establish architectural standards, validate AI-generated code, mentor senior engineers, collaborate cross-functionally, and ensure reliability through automated logging, telemetry, and debugging workflows.

Design, build, test, and deploy features for high-traffic web applications across multiple sports reference sites. Work full-stack on CI/CD pipelines and data ingestion, own features/systems, triage production issues, mentor peers, and contribute to technical planning and security/compliance improvements.

Resolve complex customer escalations by diagnosing production issues, delivering end-to-end code fixes, using AI-assisted debugging tools, documenting solutions, contributing to knowledge bases, and providing occasional after-hours pager support.

Design, implement, deploy, and operate scalable backend services, data pipelines, and cloud infrastructure. Influence architecture, mentor engineers, collaborate with data science and product, and improve engineering practices and code quality.

Develop and maintain language frontends for the Joern platform for automated software vulnerability analysis, collaborating with a global team.

As a Senior Software Engineer, you will lead your team in delivering features according to specifications, ensuring scalable technical decisions, and mentoring team members.

As a Staff Software Engineer, you will lead technical initiatives for the Core Platform team, focusing on infrastructure and security systems to enhance developer productivity and reliability.

The Sr Software Engineer will design, code, test, and document software solutions, lead technical aspects, and support integrations with various IT teams.

The Staff Software Engineer will lead AI integration into software design, develop scalable systems, and mentor other engineers while improving best practices.

As a Senior Software Engineer, you will maintain and develop data connectors, enhance data integrations, and improve developer experience within the ClickHouse data ecosystem.

The Senior Software Engineer will develop orchestration and autoscaling for the Lucenia search platform, working with cloud technologies and Kubernetes to manage services and mentor team members.

The Senior Software Engineer will focus on Lucene's distributed indexing and query capabilities, improve code features, and collaborate with a global team.

As a Senior Software Engineer, you will develop product features end-to-end, collaborate with teams, and improve developer productivity.

Design and develop scalable full-stack solutions, collaborate with teams to translate business requirements, and ensure code quality through reviews and testing.

The Senior Software Engineer will design and develop solutions on Salesforce, support software maintenance, and mentor junior engineers while driving feature development and business analysis.

Design and implement a shared Rust core used across desktop, mobile, and backend. Drive architecture decisions around CRDTs and distributed systems, integrate Rust components with frontend/mobile/backend teams, and improve performance, reliability, and maintainability.

Design, build, operate, and evolve backend services and runtime infrastructure for cloud orchestration and job execution. Own distributed, asynchronous systems, APIs, workers, persistence, and service-to-service coordination. Improve reliability, observability, testing, and operational tooling; lead cross-team designs and mentor engineers.

Build and maintain core backend components of a secure software-supply-chain clearing house in Go on GCP. Own features from design to production, handle unstructured-to-structured data pipelines, implement scalable architecture, contribute IaC with Terraform, participate in on-call and incident response, and lead multi-engineer efforts with strong operational observability.

Design, build, and maintain automated test frameworks for mobile SDKs, backend APIs, and web UIs. Write and review test code, perform manual testing, troubleshoot distributed-system issues, communicate test strategies and metrics, and work in an Agile/Scrum environment to improve product quality.

Lead architecture and build platform services for GoDaddy's Internal Developer Platform used by 1,000+ engineers. Design high-scale APIs, infrastructure orchestration, and AI-powered developer tooling. Partner with infrastructure, security, and platform teams. Own production systems (performance, reliability, on-call) and drive technical direction to improve developer productivity across APIs, CLI, and UI.